Home / 106,288.05-146,687.85-79,383.84

Finding the Fourth Proportional to 106,288.05, 146,687.85 and 79,383.84

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Solution

The fourth proportional to 106,288.05, 146,687.85 and 79,383.84 is: 109,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,288.05 : 146,687.85 = 79,383.84 : x
  2. Step 2: Convert to fraction form
    106,288.05/146,687.85 = 79,383.84/x
  3. Step 3: Cross multiply
    106,288.05x = 146,687.85 × 79,383.84
  4. Step 4: Simplify right side
    106,288.05x = 11,644,644,080.90
  5. Step 5: Solve for x
    x = 11,644,644,080.90/106,288.05
  6. Step 6: Final answer
    x = 109,557.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.